Search a number
-
+
54081953 = 533310141
BaseRepresentation
bin1100111001001…
…1100110100001
310202202122111022
43032103212201
5102321110303
65211055225
71224455222
oct316234641
9122678438
1054081953
1128589632
1216141515
13b287373
14727b249
154b34438
hex33939a1

54081953 has 4 divisors (see below), whose sum is σ = 54097428. Its totient is φ = 54066480.

The previous prime is 54081941. The next prime is 54081971. The reversal of 54081953 is 35918045.

54081953 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35918045 = 57183609.

It can be written as a sum of positive squares in 2 ways, for example, as 37173409 + 16908544 = 6097^2 + 4112^2 .

It is a cyclic number.

It is not a de Polignac number, because 54081953 - 28 = 54081697 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (54089953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 263 + ... + 10403.

It is an arithmetic number, because the mean of its divisors is an integer number (13524357).

Almost surely, 254081953 is an apocalyptic number.

It is an amenable number.

54081953 is a deficient number, since it is larger than the sum of its proper divisors (15475).

54081953 is a wasteful number, since it uses less digits than its factorization.

54081953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15474.

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 54081953 is about 7354.0433096359. The cubic root of 54081953 is about 378.1674300041.

Adding to 54081953 its reverse (35918045), we get a palindrome (89999998).

The spelling of 54081953 in words is "fifty-four million, eighty-one thousand, nine hundred fifty-three".

Divisors: 1 5333 10141 54081953